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If A=65°, b=18, c=8, what is the area of the triangle?​

If A=65°, b=18, c=8, what is the area of the triangle?​-example-1
User Nachospiu
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1 Answer

3 votes

Answer: 65.25 u²

Explanation:

I'm going to flip the triangle so c is at the bottom. i draw a height from <C down to c so that I create a right triangle and I will use trig to find h

they gave me b (hypotenuse) and <A and i want that new h we drew which is opposite <A

sin A = b/h

sin 65 = 18/h cross multipy to bring h up

h=18/sin65

h=16.31

Area= 1/2 b h b=base=c=8

=1/2 (8)(16.31)

=65.25 u²

User Mdsadiq
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9.3k points